fix: QA audit — lint cleanup, i18n fixes, module visibility, sidebar UX

- Fix 97 lint errors → 0 (unused imports, params, variables across 40+ files)
- Fix i18n key format: colon → dot notation for next-intl compatibility
- Add missing i18n keys (routes.application, routes.home, confirm)
- Fix module visibility: sidebar now respects per-account DB features
- Fix inject function: use dot-notation keys, add collapsed:true defaults
- Fix ConfirmDialog: use useTranslations instead of hardcoded German defaults
- Fix events page: replace placeholder 'Beschreibung' with proper description
- Fix Dockerfile: add NEXT_PUBLIC_CI ARG for Docker builds
- Collapse secondary sidebar sections by default for cleaner UX

packages/features/sitzungsprotokolle/src/components/protocol-items-list.tsx

@@ -43,10 +43,10 @@ const STATUS_TRANSITIONS: Record<string, MeetingItemStatus> = {
 
 export function ProtocolItemsList({
   items,
-  protocolId,
-  account,
+  protocolId: _protocolId,
+  account: _account,
 }: ProtocolItemsListProps) {
-  const { execute: executeStatusUpdate, isPending: isUpdating } = useAction(
+  const { execute: executeStatusUpdate, isPending: _isUpdating } = useAction(
     updateItemStatus,
     {
       onSuccess: ({ data }) => {

packages/features/sitzungsprotokolle/src/server/api.ts

@@ -150,7 +150,7 @@ export function createMeetingsApi(client: SupabaseClient<Database>) {
       return data ?? [];
     },
 
-    async createItem(input: CreateProtocolItemInput, userId: string) {
+    async createItem(input: CreateProtocolItemInput, _userId: string) {
       const { data, error } = await client
         .from('meeting_protocol_items')
         .insert({
@@ -168,7 +168,7 @@ export function createMeetingsApi(client: SupabaseClient<Database>) {
       return data;
     },
 
-    async updateItem(input: UpdateProtocolItemInput, userId: string) {
+    async updateItem(input: UpdateProtocolItemInput, _userId: string) {
       const updateData: Record<string, unknown> = {};
 
       if (input.title !== undefined) updateData.title = input.title;
@@ -191,7 +191,7 @@ export function createMeetingsApi(client: SupabaseClient<Database>) {
       return data;
     },
 
-    async updateItemStatus(input: UpdateItemStatusInput, userId: string) {
+    async updateItemStatus(input: UpdateItemStatusInput, _userId: string) {
       const { data, error } = await client
         .from('meeting_protocol_items')
         .update({